Adding back ppc64le and s390x for vmdk cloud images

Since they had to be seperated, koji tried to generate two images of
same name and it failed. We decided to revert it and check with pungi
folks for a better solution.

https://pagure.io/releng/failed-composes/issue/1372

Revert "Removing ppc64le and s390x vmdk cloud images"

This reverts commit 46b1711d1d.

Signed-off-by: Mohan Boddu <mboddu@bhujji.com>

fedora.conf

@@ -353,19 +353,6 @@ image_build = {
                     'failable': ['ppc64le', 's390x'],
                      }
         },
-        {
-            'image-build': {
-                    'format': [('vmdk','vmdk')],
-                    'name': 'Fedora-Cloud-Base',
-                    'kickstart': 'fedora-cloud-base.ks',
-                    'distro': 'Fedora-22',
-                    'disk_size': 4,
-                    'arches': ['aarch64', 'x86_64'],
-                    'repo': 'Everything',
-                    'install_tree_from': 'Everything',
-                    'subvariant': 'Cloud_Base',
-                     }
-        },
         {
             'image-build': {
                     'format': [('vagrant-libvirt','vagrant-libvirt.box'), ('vagrant-virtualbox','vagrant-virtualbox.box')],